last executing test programs: 1.19568025s ago: executing program 1 (id=17): quotactl_fd$Q_GETFMT(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000000)) 1.141410858s ago: executing program 0 (id=21): fsetxattr(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000), 0x0, 0x0) 1.14130589s ago: executing program 1 (id=22): socket$hf(0x13, 0x2, 0x0) 1.101318017s ago: executing program 0 (id=25): syz_open_dev$floppy(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$floppy(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$floppy(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$floppy(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$floppy(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$floppy(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$floppy(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$floppy(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$floppy(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$floppy(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$floppy(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$floppy(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$floppy(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$floppy(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$floppy(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$floppy(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$floppy(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$floppy(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$floppy(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$floppy(&(0x7f0000000500), 0x4, 0x800) 1.05328118s ago: executing program 0 (id=27): syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) 1.029930943s ago: executing program 0 (id=30): recvmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0) 957.219137ms ago: executing program 0 (id=34): getegid() 957.144067ms ago: executing program 1 (id=35): clock_gettime(0x0, &(0x7f0000000000)) 956.843281ms ago: executing program 0 (id=38): rt_sigreturn() 943.457608ms ago: executing program 1 (id=39): getpgrp(0x0) 877.452435ms ago: executing program 1 (id=42): openat2(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000), 0x0) 877.248752ms ago: executing program 1 (id=44): pause() 117.45521ms ago: executing program 2 (id=98): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/btf/vmlinux', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/sys/kernel/btf/vmlinux', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/kernel/btf/vmlinux', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/sys/kernel/btf/vmlinux', 0x800, 0x0) 117.342182ms ago: executing program 3 (id=99): timerfd_settime(0xffffffffffffffff, 0x0, &(0x7f0000000000), &(0x7f0000000000)) 117.264387ms ago: executing program 3 (id=100): sysinfo(&(0x7f0000000000)) 117.126431ms ago: executing program 2 (id=101): syz_open_dev$rtc(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$rtc(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$rtc(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$rtc(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$rtc(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$rtc(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$rtc(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$rtc(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$rtc(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$rtc(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$rtc(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$rtc(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$rtc(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$rtc(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$rtc(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$rtc(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$rtc(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$rtc(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$rtc(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$rtc(&(0x7f0000000500), 0x4, 0x800) 99.484707ms ago: executing program 3 (id=102): syz_open_dev$video4linux(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$video4linux(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$video4linux(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$video4linux(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$video4linux(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$video4linux(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$video4linux(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$video4linux(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$video4linux(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$video4linux(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$video4linux(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$video4linux(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$video4linux(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$video4linux(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$video4linux(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$video4linux(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$video4linux(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$video4linux(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$video4linux(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$video4linux(&(0x7f0000000500), 0x4, 0x800) 82.912992ms ago: executing program 2 (id=103): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttynull', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ttynull', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ttynull', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ttynull', 0x800, 0x0) 21.67658ms ago: executing program 3 (id=104): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/pmem0', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pmem0', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/pmem0', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/pmem0', 0x800, 0x0) 21.49281ms ago: executing program 2 (id=105): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/uhid', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/uhid', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/uhid', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/uhid', 0x800, 0x0) 21.41109ms ago: executing program 3 (id=106): move_pages(0x0, 0x0, &(0x7f0000000000), 0x0, &(0x7f0000000000), 0x0) 21.337998ms ago: executing program 2 (id=107): pread64(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 8.13784ms ago: executing program 3 (id=108): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/cuse', 0x2, 0x0) 0s ago: executing program 2 (id=109): execveat(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.1.186' (ED25519) to the list of known hosts. [ 69.460868][ T5828] cgroup: Unknown subsys name 'net' [ 69.567070][ T5828] cgroup: Unknown subsys name 'cpuset' [ 69.576414][ T5828] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.000328][ T5828] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 71.647476][ T1312] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.654905][ T1312] ieee802154 phy1 wpan1: encryption failed: -22 [ 75.970462][ T5958] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000046: 0000 [#1] SMP KASAN PTI [ 75.984056][ T5958] KASAN: null-ptr-deref in range [0x0000000000000230-0x0000000000000237] [ 75.992760][ T5958] CPU: 1 UID: 0 PID: 5958 Comm: syz.3.108 Not tainted syzkaller #0 PREEMPT(full) [ 76.002750][ T5958] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 76.013685][ T5958] RIP: 0010:fuse_dev_alloc_install+0x39/0x80 [ 76.020146][ T5958] Code: e8 bc f8 ff ff 48 89 c3 48 85 c0 74 47 e8 7f 42 7f fe 49 8d be 30 02 00 00 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 05 e8 8c 88 e9 fe 49 8b 96 30 02 00 00 49 c7 86 30 [ 76.045070][ T5958] RSP: 0018:ffffc90004627710 EFLAGS: 00010202 [ 76.051415][ T5958] RAX: 0000000000000046 RBX: ffff888034971d00 RCX: dffffc0000000000 [ 76.059669][ T5958] RDX: 0000000000000000 RSI: ffffffff8e31bce4 RDI: 0000000000000230 [ 76.068271][ T5958] RBP: ffff888028069490 R08: ffffffff907528f7 R09: 1ffffffff20ea51e [ 76.076690][ T5958] R10: dffffc0000000000 R11: fffffbfff20ea51f R12: ffff88802903c840 [ 76.085021][ T5958] R13: ffff88802903c810 R14: 0000000000000000 R15: ffff88802903c800 [ 76.093508][ T5958] FS: 0000555591967500(0000) GS:ffff888124ecf000(0000) knlGS:0000000000000000 [ 76.102889][ T5958] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.109720][ T5958] CR2: 00007f59f9a33c21 CR3: 000000007942a000 CR4: 00000000003526f0 [ 76.118029][ T5958] Call Trace: [ 76.121584][ T5958] [ 76.124679][ T5958] cuse_channel_open+0x107/0x7c0 [ 76.129791][ T5958] ? __pfx_cuse_channel_open+0x10/0x10 [ 76.135408][ T5958] misc_open+0x2d5/0x350 [ 76.139809][ T5958] chrdev_open+0x4cd/0x5e0 [ 76.144563][ T5958] ? __pfx_chrdev_open+0x10/0x10 [ 76.149577][ T5958] ? fsnotify_open_perm_and_set_mode+0x135/0x6d0 [ 76.156114][ T5958] ? __pfx_chrdev_open+0x10/0x10 [ 76.161224][ T5958] do_dentry_open+0x785/0x14e0 [ 76.166171][ T5958] vfs_open+0x3b/0x340 [ 76.170401][ T5958] ? path_openat+0x2df0/0x3860 [ 76.175249][ T5958] path_openat+0x2e08/0x3860 [ 76.180405][ T5958] ? __pfx_stack_trace_save+0x10/0x10 [ 76.185944][ T5958] ? stack_depot_save_flags+0x33/0x810 [ 76.192004][ T5958] ? __pfx_path_openat+0x10/0x10 [ 76.198144][ T5958] ? __x64_sys_openat+0x138/0x170 [ 76.203682][ T5958] ? __lock_acquire+0x6b5/0x2cf0 [ 76.209422][ T5958] do_file_open+0x23e/0x4a0 [ 76.214256][ T5958] ? __pfx_do_file_open+0x10/0x10 [ 76.219405][ T5958] ? _raw_spin_unlock+0x28/0x50 [ 76.224859][ T5958] ? alloc_fd+0x64b/0x6c0 [ 76.229966][ T5958] do_sys_openat2+0x113/0x200 [ 76.235067][ T5958] ? __pfx_do_sys_openat2+0x10/0x10 [ 76.240258][ T5958] ? exc_page_fault+0x6a/0xc0 [ 76.245099][ T5958] ? do_user_addr_fault+0xc6f/0x1340 [ 76.251858][ T5958] __x64_sys_openat+0x138/0x170 [ 76.257500][ T5958] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.264418][ T5958] do_syscall_64+0x15f/0xf80 [ 76.269901][ T5958] ? trace_irq_disable+0x3b/0x140 [ 76.275522][ T5958] ? clear_bhb_loop+0x40/0x90 [ 76.280195][ T5958] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.286802][ T5958] RIP: 0033:0x7fb46259c819 [ 76.291824][ T5958] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 76.312227][ T5958] RSP: 002b:00007fffd4a192d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 76.322914][ T5958] RAX: ffffffffffffffda RBX: 00007fb462815fa0 RCX: 00007fb46259c819 [ 76.331503][ T5958] RDX: 0000000000000002 RSI: 0000200000000040 RDI: ffffffffffffff9c [ 76.339918][ T5958] RBP: 00007fb462632c91 R08: 0000000000000000 R09: 0000000000000000 [ 76.348370][ T5958] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.356784][ T5958] R13: 00007fb462815fac R14: 00007fb462815fa0 R15: 00007fb462815fa0 [ 76.365295][ T5958] [ 76.368318][ T5958] Modules linked in: SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 76.373232][ T5958] ---[ end trace 0000000000000000 ]--- [ 76.392656][ T5958] RIP: 0010:fuse_dev_alloc_install+0x39/0x80 [ 76.399831][ T5958] Code: e8 bc f8 ff ff 48 89 c3 48 85 c0 74 47 e8 7f 42 7f fe 49 8d be 30 02 00 00 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 05 e8 8c 88 e9 fe 49 8b 96 30 02 00 00 49 c7 86 30 [ 76.421398][ T5958] RSP: 0018:ffffc90004627710 EFLAGS: 00010202 [ 76.430938][ T5958] RAX: 0000000000000046 RBX: ffff888034971d00 RCX: dffffc0000000000 [ 76.453707][ T5958] RDX: 0000000000000000 RSI: ffffffff8e31bce4 RDI: 0000000000000230 [ 76.465221][ T5958] RBP: ffff888028069490 R08: ffffffff907528f7 R09: 1ffffffff20ea51e [ 76.474118][ T5958] R10: dffffc0000000000 R11: fffffbfff20ea51f R12: ffff88802903c840 [ 76.482858][ T5958] R13: ffff88802903c810 R14: 0000000000000000 R15: ffff88802903c800 [ 76.492051][ T5958] FS: 0000555591967500(0000) GS:ffff888124dcf000(0000) knlGS:0000000000000000 [ 76.501538][ T5958] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.509762][ T5958] CR2: 000055f6eda81000 CR3: 000000007942a000 CR4: 00000000003526f0 [ 76.522096][ T5958] Kernel panic - not syncing: Fatal exception [ 76.529334][ T5958] Kernel Offset: disabled [ 76.534012][ T5958] Rebooting in 86400 seconds..